It would be 10 because the scale factor is -2
S = 7x^2....divide both sides by 7
1/7s (same as s/7) = x^2...now take sqrt of both sides
(+ - ) sqrt 1/7s = x
Formula of the area of triangle: (BxH)/2
So:
1.6B/2 = 2.4
Multiply both sides by 2:
1.6B = 4.8
Divide both sides by 1.6:
B = 3
Answer:
I'm pretty sure it's 12. hope it helps.
